Forest Circles, Natural Circular Features Resulting From Self-Organizing Processes
Natural processes, other than impacts, can also cause circular
features seen in aerial photography and other imagery. Forest
circles are an example of a circular feature create by the
interaction of geology with plants. Go read:
Brauneder, K., S. M. Hamilton, and K. Hattori, 2016,
Geochemical processes in the formation of ‘forest rings’:
examples of reduced chimney formation in the absence of
mineral deposits. Geochemistry Exploration Environment.
vol. 16, no. 1, pp. 2015-2360. DOI: 10.1144/geochem2015-360
More information in:
Hamilton, S.M., Burt, A.K., Hattori, K.H. & Shirota, J. 2004a.
The distribution and source of forest ring-related methane
in northeastern Ontario. In: Summary of Fieldwork and Other
Activities, 2004. Ontario Geological Survey Open File Report
no. 6145, pp. 21-1–21-6.
Hamilton, S.M. & Hattori, K.H. 2008. Spontaneous potential
and redox responses over a forest ring. Geophysics. vol. 37,
Brauneder, K., Keiko H. Hattori, and G. Southam, 2009,
Investigation of physical, chemical and microbiological
processes in the development of forest rings in Ontario.
Abstract, International Applied Geochemistry Symposium, 2009
The mysterious forest rings of northern Ontario
by Elle Andra-Warner, May 21, 2008, CBC,
More PDF files about Canadian rocks, minerals, and ores at: